JP2004347230A - Combustion chamber of gas boiler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly economical combustion chamber of a gas boiler capable of making a device into a small and compact size and improving the yield. <P>SOLUTION: In this combustion chamber of the gas boiler, in order to increase the heat transfer area of a heating water inflow pipe to improve the heat exchange efficiency, the heating water inflow pipe 25 is formed within the combustion chamber 10, and a heat insulating member 45 is provided in the housing 15 of the combustion chamber. A heat exchange pipe is formed in a double structure of an inner copper material pipe and an outer aluminum material pipe, and a heat absorbing fin 35 is formed on the circumferential surface of the aluminum material pipe through a rolling work. Otherwise, the whole heat exchange pipe is formed in a single structure of a copper material pipe, and the heat absorbing fin 35 is formed on the circumferential surface of the pipe through rolling work. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a combustion chamber (COMBATION CHAMBER OF GAS BOILER) of a gas boiler, and more specifically, a heating water inflow pipe through which heating water flows is provided inside the combustion chamber, and a heat insulating member is provided outside the housing of the combustion chamber. By forming endothermic fins on the outer peripheral surface of the exchange pipe through rolling, the heat exchange pipe is easy to process, but a larger amount of heat is exchanged inside the combustion chamber of the gas boiler. About.
[0002]
[Prior art]
Generally, a gas boiler heats water using combustion heat generated when gas is burned as fuel, and circulates the heated and stored water to a heating pipe provided in a room using a circulation pump. This is a device that heats the room and supplies warm water to the bath and kitchen as hot water.
[0003]
Such gas boilers are classified into various types according to a control method and a closed state, and are classified into condensed and non-condensed according to a heat source for heating the heating water.
Among these, the condensing method heats the heating water using the latent heat of the exhaust gas that has passed through the sensible heat exchanger together with the sensible heat section heat exchanger that directly heats the heating water using the heat burned by the burner. In the non-condensing method, only the sensible heat unit is provided.
[0004]
FIG. 5 is a side internal configuration diagram of a conventional general gas boiler combustion chamber.
As shown in the figure, a heating water inflow pipe 25 into which heating water supplied through a heating water inlet 20 flows is wound around the housing 15 of the combustion chamber 10 at the lower end of the combustion chamber 10. A heat exchange pipe 30 connected to the heating water inflow pipe 25 for heat exchange is provided, and a heating water outflow part 40 for discharging the absorbed heating water is formed at an end of the heat exchange pipe 30. ing.
[0005]
At this time, a number of heat absorbing fins (heat absorption) are provided outside the heat exchange pipe 30.
fin) 35 is brazed welded.
Further, a burner (not shown) for burning the inflow air is provided at a lower portion of the combustion chamber 10 to burn gas fuel.
[0006]
The operation of the conventional gas boiler having the above-described configuration will be described as follows.
During operation of the boiler, if gas is burned by the incoming air, the heat of combustion is transmitted to the inside of the combustion chamber 10 and preheats the heating water flowing through the heating water inflow pipe 25 wound around the housing 15 of the combustion chamber 10. Thereafter, the heating water is directly heated by the heat exchange pipe 30, and the burned exhaust gas is released into the atmosphere.
[0007]
However, in the conventional combustion chamber 10, the heating water inflow pipe 25 into which the heating water flows is wound around the outside of the housing 15 of the combustion chamber 10, so that the heat is transmitted to the housing 15 of the combustion chamber 10 and is discharged to the outside. The heat source can be only partially absorbed, the appearance of the combustion chamber 10 is complicatedly formed, and there is a problem in achieving downsizing and downsizing of the combustion chamber 10.
[0008]
Further, there is a problem that the combustion chamber 10 cannot be insulated because of the heat absorption of the heating water inflow pipe 25, and the efficiency of the combustion chamber 10 is deteriorated as a whole.
The heat exchange pipe 30 has a large number of heat absorbing fins 35 attached to the external appearance of the heat exchange pipe 30 by brazing and welding, so that the process is complicated, the processing cost is increased, and the price of the combustion chamber is reduced as a whole. There was an inconvenience of being expensive.
[0009]
[Problems to be solved by the invention]
The present invention has been devised to solve the above-described problems. The object of the present invention is to provide a heating water inflow pipe through which heating water flows and not inside the combustion chamber, but to provide a heat insulating member in a housing of the combustion chamber. The heat transfer area is increased while preventing heat from being released to the outside and being wasted, and more heat is absorbed inside the combustion chamber to reduce the size and size of the device. Another object of the present invention is to provide a combustion chamber of a gas boiler which is improved in yield and economical.
[0010]
Further, another object of the present invention is to use a double-layered structure using a copper pipe having an excellent heat transfer coefficient using an aluminum pipe outside the heat exchange pipe, or as a whole heat exchange pipe. In addition to making copper tubes, heat absorbing fins provided outside of the heat exchange pipes are formed through rolling, thereby facilitating the processing of the heat exchange pipes and enabling economical production of gas boilers. To provide rooms.
[0011]
[Means for Solving the Problems]
The present invention for achieving the above-described object is to provide a combustion chamber of a gas boiler provided with a heat exchange pipe having heat absorbing fins so as to exchange heat through a combustion heat of a burner with heating water flowing through a heating water inflow pipe. A heating chamber for a gas boiler is provided, wherein the heating water inflow pipe is formed inside the combustion chamber in order to increase a heat transfer area of the heating water inflow pipe and improve heat exchange efficiency.
At this time, it is desirable to provide a heat insulating member outside the housing of the combustion chamber.
[0012]
A heat exchange pipe is formed in a double structure using a copper pipe inside the heat exchange pipe and an aluminum pipe outside, and heat absorbing fins provided on an outer peripheral surface of the heat exchange pipe are used. Is preferably formed through rolling.
Of course, the heat exchange pipe may be formed in a single structure using a copper pipe as a whole, and the heat absorbing fins provided on the outer peripheral surface of the heat exchange pipe may be formed by rolling.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a combustion chamber of a gas boiler according to the present invention will be described in detail with reference to the accompanying drawings. Parts that are the same as or similar to the conventional structure described in the related art will be given the same name and the same reference numerals.
[0014]
FIG. 1 is a side internal configuration diagram of a gas boiler combustion chamber according to the present invention, and FIG. 2 is a front internal configuration diagram of a gas boiler combustion chamber according to the present invention.
FIG. 3 shows another embodiment of the present invention, and is a side internal configuration diagram of a gas boiler combustion chamber. FIG. 4 shows another embodiment of the present invention, in which the combustion chamber shown in FIG. FIG.
[0015]
As shown in FIGS. 1 and 2, the combustion chamber of the gas boiler according to the present invention has a configuration similar to the combustion chamber described in the related art.
That is, a heating water inflow pipe 25 formed in a coil shape in the housing 15 of the combustion chamber 10 and flowing the heating water through the heating water inflow port 20, and heat that directly exchanges heat using the combustion heat of the burner while the heating water flows. It is configured to include an exchange pipe 30 and a heating water outflow portion 40 from which heating water heated through the heat exchange pipe 30 is discharged.
[0016]
Of course, on the outer peripheral surface of the heat exchange pipe 30, heat absorbing fins 35 for improving the heat exchange rate are provided. Although the heat absorbing fins 35 are brazed, the invention is not limited thereto, and may be rolled.
At this time, the combustion chamber of the gas boiler according to the present invention is not limited to a non-condensing type gas boiler, but also corresponds to a condensing type gas boiler.
[0017]
Here, the gist of the technical configuration according to the present invention is that the heating water inflow pipe 25 wound around the outside of the conventional combustion chamber 10 is provided inside the combustion chamber 10, and the outside of the housing 15 of the combustion chamber 10 is provided outside. Is provided with a heat insulating member 45.
Since the heating water inflow pipe 25 is provided inside the combustion chamber 10 so as to compensate for the volume occupied by being wound outside, the combustion chamber 10 is reduced in size and has an external appearance. In short, compactness can be achieved.
[0018]
Further, by providing the heating water inflow pipe 25 through which the heating water flows in the combustion chamber 10 to increase the heat transfer area, a larger amount of heat can be directly and indirectly absorbed. By providing the heat insulating member 45 on the outer wall of the housing 15 of the combustion chamber 10, heat released to the outside of the combustion chamber 10 is blocked, and a larger amount of heat can be absorbed in the combustion chamber 10. .
[0019]
On the other hand, as shown in FIGS. 3 and 4, in another embodiment of the present invention, in forming the heat exchange pipe 30, a copper pipe 30a having excellent heat transfer coefficient is used for the inside, and an aluminum is used for the outside. The heat absorbing fin 35 provided on the outer peripheral surface of the heat exchange pipe 30 is formed by rolling after forming a double structure using the pipe 30b made of a material.
[0020]
As described above, the heat exchange pipe 30 is changed from the conventional one using an aluminum material or a stainless steel material having a low heat transfer coefficient, and the pipe 30a made of a copper material having an excellent heat transfer coefficient has a double structure inside. In addition to improving the thermal efficiency, the use of such a material can also prevent internal corrosion.
[0021]
Further, since the heat absorbing fins 35 are formed by changing from the conventional brazing welding method to the rolling processing method, a complicated process by the conventional brazing welding can be omitted, so that the working process is simplified. It has the advantage of improving the yield.
Although not shown, the heat exchange pipe 30 is made of a copper pipe as a whole so as to have a single structure, while the heat absorbing fins 35 provided on the outer peripheral surface of the heat exchange pipe 30 are provided. Can be formed through rolling.
[0022]
Hereinafter, the operation and effect of the combustion chamber of the gas boiler according to the present invention having the above-described configuration will be described as follows.
If the gas is burned by the burner using the air introduced from the outside, the heat of combustion is transmitted to the inside of the combustion chamber 10, and the heating water is formed by the heating water inflow pipe 25 formed inside the combustion chamber 10 and flowing the heating water. Is preheated.
[0023]
Next, the heating water is directly heated while passing through the heat exchange pipe 30, the heating water is stored and then discharged through the heating water outlet 40, and the burned exhaust gas is released into the atmosphere.
At this time, a larger amount of heat exchange is performed inside the combustion chamber 10 by the heat insulating member 45.
[0024]
In addition, since the heating water inflow pipe 25 is provided inside the combustion chamber 10 instead of outside, the heating water inflow pipe 25 preheated by receiving heat radiated by the housing 15 of the conventional combustion chamber 10 to only one side is provided. It becomes possible to absorb heat by increasing the heat transfer area. The inside of the heat exchange pipe 30 is formed by using a copper pipe 30a, and the outside is formed by using an aluminum pipe 30b to form a double structure. By forming the heat absorbing fins 35 through the through holes, a separate brazing welding process is not required unlike the related art, so that the working process is simplified and the yield is improved.
[0025]
Although the combustion chamber 10 is illustrated and illustrated as a general gas boiler, the purpose of the present invention is to form a heating water inflow pipe 25 inside the combustion chamber 10 and to provide a heat insulating member 45 to the housing 15 of the combustion chamber 10. Therefore, it is obvious that the present invention can be applied to all boilers pursuing such a purpose, because the heat transfer efficiency is increased by providing the above.
That is, those skilled in the art can easily understand that the present invention is not limited to the above-described configuration, and various modifications and changes can be made without departing from the spirit and scope of the present invention.
[0026]
【The invention's effect】
As described above, according to the combustion chamber of the gas boiler according to the present invention, the heating water inflow pipe into which the heating water flows is provided not inside the combustion chamber but outside, and the housing of the combustion chamber is provided with the heat insulating member. The heat transfer area is increased to prevent heat from being released to the outside and wasted, so that a larger amount of heat can be absorbed inside the combustion chamber, and of course, the device can be made smaller and more compact.
[0027]
Further, in the present invention, in forming the heat exchange pipe, the heat exchange pipe is made of an aluminum pipe for the outside and a copper pipe (copper pipe) having an excellent heat transfer coefficient for the inside. By forming a heat transfer fin formed on the outer peripheral surface of the heat exchange pipe through rolling processing while forming a double structure or using the entire heat exchange pipe with a copper pipe, processing of the heat exchange pipe is easy. In spite of this, it is an extremely useful and effective invention that can be produced economically and can improve productivity.
[Brief description of the drawings]
FIG. 1 is a side internal configuration diagram of a gas boiler combustion chamber according to the present invention.
FIG. 2 is a front internal configuration diagram of a gas boiler combustion chamber according to the present invention.
FIG. 3 is a side internal configuration diagram of a gas boiler combustion chamber according to another embodiment of the present invention.
FIG. 4 is a front internal configuration diagram of a combustion chamber shown in FIG. 3 according to another embodiment of the present invention.
FIG. 5 is a side internal configuration diagram of a conventional general gas boiler combustion chamber.
[Explanation of symbols]
10: Combustion chamber 15: Housing 20: Heating water inlet 25: Heating water inflow pipe 30: Heat exchange pipe 35: Heat absorbing fin (fin)
40: heating water outlet 45: heat insulating member 30a: copper pipe 30b: aluminum pipe

Claims (4)

In a combustion chamber of a gas boiler provided with a heat exchange pipe 30 having heat absorbing fins 35 for exchanging heat through a combustion heat of a burner with a heating water flowing through a heating water inflow pipe 25,
A combustion chamber for a gas boiler, wherein the heating water inflow pipe 25 is formed inside the combustion chamber 10 in order to increase the heat transfer area of the heating water inflow pipe 25 and improve heat exchange efficiency. The combustion chamber of a gas boiler according to claim 1, wherein a heat insulating member (45) is provided outside the housing (15) of the combustion chamber (10). The inside of the heat exchange pipe 30 is formed as a double structure using a copper pipe 30a, and the outside is formed as a double structure using an aluminum pipe 30b. The combustion chamber of a gas boiler according to claim 1, wherein the combustion chamber is formed. 3. The heat exchange pipe according to claim 1, wherein the heat exchange pipe is formed in a single structure using a copper pipe, and the heat absorbing fins are formed through a rolling process on an outer peripheral surface of the copper pipe. 4. Gas boiler combustion chamber.

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